Chemicals and Drugs

Deoxyribonuclease I

An enzyme capable of hydrolyzing highly polymerized DNA by splitting phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide. This catalyzes endonucleolytic cleavage of DNA yielding 5'-phosphodi- and oligonucleotide end-products. The enzyme has a preference for double-stranded DNA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An enzyme capable of hydrolyzing highly polymerized DNA by splitting phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide. This catalyzes endonucleolytic cleavage of DNA yielding 5'-phosphodi- and oligonucleotide end-products. The enzyme has a preference for double-stranded DNA.

MeSH Record

Classification

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MeSH Record

Synonyms

16 entry terms
  • DNA Endonuclease
  • DNAase I
  • DNase I
  • Pancreatic DNase
  • Thymonuclease
  • DNase, Pancreatic
  • Endonuclease, DNA
  • DNA Nicking Enzyme
  • Dornavac
  • Endonuclease I
  • Nickase
  • Streptodornase
  • T4-Endonuclease II
  • T7-Endonuclease I
  • T4 Endonuclease II
  • T7 Endonuclease I

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

MeSH Record

Indexing Annotation

do not confuse entry term STREPTODORNASE with STREPTODORNASE AND STREPTOKINASE

MeSH Record

History Note

85; STREPTODORNASE was see DEOXYRIBONUCLEASES 1966-93

MeSH Record

Previous Indexing

  • Deoxyribonucleases (1966-1982)
  • Endodeoxyribonucleases (1983-1984)
  • Endonucleases (1973-1982)

MeSH Hierarchy

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AMA Style

References

  1. National Library of Medicine. Deoxyribonuclease I. Medical Subject Headings (MeSH). 2026. Unique ID D003850. http://id.nlm.nih.gov/mesh/2026/D003850
  2. Deoxyribonuclease I. In: Wikidata. https://www.wikidata.org/wiki/Q24772449